Malignancies are a term for diseases in which abnormal cells such as cancer cells grow uncontrollably and invade nearby tissue, and can also spread to other parts of the body.
Sources:
- NIH: National Cancer Institute. malignancy. https://www.cancer.gov/publications/dictionaries/cancer-terms/def/malignancy (accessed 6. August 2020)
- WebMD. What is a malignant tumor? https://www.webmd.com/cancer/qa/what-is-malignant-cancer (accessed 6. August 2020)